Plastic-mold-form structure



May 19. 925. I

A. c. WELLS PLASTIC MOLD FORM STRUCTURE 'Filgd March 10. 1922 2 Sheet sheat 1 May 19, 1925. 1,538,496

c. WELLS PLASTIC MOLD FORM STRUCTURE d March 10, 1922 2 Sheets-Sheet" 2 fzzezzfaz" 2022 7 656 J/f/C' @3225 Pa ta May 19, 1925.- I 1,538,496 UNITED STATES PATENT orFicE, l v main c. WEI-Ls, or E8 nofims'rowh.

PLASTIC-MOLD-FOR STRUCTURE.

To all whom it may concern:

Be it known that I, ALBERT C. WELLS, a citizen of the United States, and a resident of Des Moines, in the county of Polk and State of Iowa, have invented a certain new and useful Plastic-Mold-Form Structure, of which the following is a s ecification.

The object of my invention is to provide a plastic mold form for use in the construction of buildings.

More particularly, it is my object to provide a form, which can be used for constructing all the walls of the building at onetime with poured concrete,

A further object is to provide forms of the kind under considerat1on,'havin1g interchangeable sections, so arranged t at the sections can be mounted thereon in a great variety of arrangements for building walls of different heights, lengths, and thicknesses.

It is my purpose to provide a form structure, which can be'used for the building of practically any kind ing a plurality of Walls.

With these and other objects in view, my invention consists in the construction, ar-

rangement and combination of the various ground, and then raised.

parts of my device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims,

and illustrated in the accompanying drawings, in which:

igure 1 shows a front elevation of a set of my forms assembled for use.

Figure 2 shows a vertical, sectional view taken on the line 22 of Figure 1.

Figure 3 shows a detailed, sectional view taken'on the line 3-3 of Figure 1, the form members being shown partly in plan, as they stand upright.

Figure 4 shows an enlarged elevation of four sections of the form, illustrating the e of building, hav- I I' use one or more'horizontal frame members, indicated by the reference character of flat metal plates 12 and suitable bolts and nuts 13 and 14. The frame members 11 may be varied in length somewhat, depending upon the kind of wall, which is to be built.

When the frame member has been formed, it is set upright, and held, and the form sections are mounted thereon. The larger number of the form sections are of standard sizes, and the standard size section is indicated by the reference character 15.

Each form section is preferably made of a metal plate, having in its outer face, a transverse roove 16, as shown for instance in Figure The groove is" covered for a part of itslength by means of a plate 17, having an elongated slot 18 above the groove and parallel therewith The plate 17 terminates short of one end of the. groove to permit a headed bolt 19, as shown for instance by dotted lines in Figure 7, to be inserted in the open end of the groove, and thence into the slot 18, with the head received in the groove 16 under the plate 17. Two bolts 19 are placed in illustrated by dotted lines in Figure 7, and are arrangedmn opposite sides of one of the upright frame members 11-.

A plate 20 having suitable holes therein to receive the bolts 19 is placed outside the upright 11, as shown for instancein Figure 5, and is held in position by means of nuts 21. Two bolts 22 are arranged on opposite sides of the upright 11, preferably near the bolts 19. One of the bolts 22 is preferably arranged above and the other below the bolts 19.

osition, as s fastening devices. A plate 23 similar to the plate 20 is Figure 5 shows a detailed, sectional view mounted on the bolts 22, adjacent to the taken on the line 5-5 of Figure 1. inner faceof the upright 11, and is forced Figure 6 shows a detailed, sectional view against the said inner face by means of taken on the line 6-6 of Figure 5. nuts 24.

Figure 7 shows a sectional view of one It will be seen that the bolts 19 and 22 of the forms taken on the line7--7 of Fig and the plates 20 and 23 and the nuts 21 ure 8; and and 24 form a clamp structure, so arranged Figure 8 shows a front elevation of one that the form sections 15 may be projected of the three-quarter size form sections. inwardly or outwardly readily with rela- It is my purpose to tion tothe frame.

provide a frame,

which is preferably assem led lying on the An inner frame of similar construction is set up and spaced inwardly from the outer frame and form sections are mounted on the inner frame in the same way as that hereinbefore described.

Three-quarter size sections 25 may be employed to be mounted on'the frame around the openings in the building, and, of course, other sizes may be used, where they are needed.

In the ordinary size, I preferably provide the cross grooves 26 and 27 covered by a plate 28, having therein crossed slots 29 and 30 above the respective grooves 26 and 27.

The groove 26 preferably projects beyond the plate 28, as shown in Figure 8, and the slot 29 is open at one end to permit the projecting head of a bolt to be inserted into the oove underneath the plate 28, so that the alts can he slid into the slots 29 and 30 and into the grooves 26 and 27.

It will be noted that the bolts 19, which are received in the slots in the outer faces of the sections may be adjusted in said slots readily, so as to permit the adjustment of the form sections on the frame.

I have provided in the outer surface of each form section, a plurality of recesses 31, each covered by plates 32 formed with holes 33, to receive the fastening devices hereinafter referred to.

The recesses 31 and ranged and located, as the purpose.

There is preferably one of the holes 31 near each corner of each form section.

For securing-the form sections together,

plate 3.2 may be armay be desired for I and connecting each form section with the next form section above and below it or at its side, I use a plate or strip 34 placed above the next adjacent recesses 31 and their plates may be mentioned that the plates 17 and 32 are preferably inset, so that there are no projections on any of the form sections.

- For connecting together, two adjacentslot 35 in the strip or sections, I insert in a plate 34, a hook member 36, having an outwardly extending member 37. In a similar slot 38, I insert a hook member 39, having a threaded end member 40, which is inserted through a hole in the member37 and has a nut 41 thereon. the member 40, the hook members 36 and 39 are forced into the holes 33 for pulling the sections together, and forcing the hook members against the sections for snugly clamping them.

It will be noted that the hook members 36 and 39 have the inclined ends A and B, so that when the nuts 41 are screwed tight, the members A and B slide into the recesses 31.

At the adjacent corners of the four blocks 15, I preferably place a plate 42, having substantially the shape of a Greek cross, and

By screwing the nut 41 on provided in its arms with elongated slots 43. Above the plate 42 is a similar plate 44, the arms of which are shorter and are turned outwardly as at 45.

Hook devices 39, similar to those already described, are inserted through the slots or holes 43 and the holes 32 into the recesses 31, while the screw-threaded portions 40 are inserted through suitable holes in the outstanding members 45, so that when the nuts 41 are screwed tight, the four sections will be drawn tightly together and held against relative inward or outward movement.

For making an inclined wall, I use half sections 46 or sections cut on the proper angle for the purpose.

For providing for openings in the building, I omit sections or parts of full size or part size, and insert metal frames 47 for closing the opening between the two sets of form sections, and leaving an opening in the wall. The frames 47 may be of the desired size or may be made in knockdown form, if desired.

At the corners, where two walls are to join, the outer sections of the form at one side of the wall and at the adjacent side of the next wall come together, as shown for instance in Figure 3. The space at the corner is filled with an upright member 49,

which is held in position by means of a clamp device, comprising an angle iron 50, having at its ends, outward projections 51 provided with holes for receiving the screwthreaded portions 40 of hooks 39 inserted into the holes or recesses 31, as illustrated for instance in Figure 3.

At the inside corners. a similar upright 49 is provided, having a loop 52 with an inwardly projecting arm 53, which is mounted on a bolt, having portions 54 bent at right angles to each other and screw-threaded to be inserted through the portions 37 of the hook members 36 such as have already been described.

It will be noted that by using a variety of form sections of proper sizes, a wall of any size, height. or length may be built.

By building the inside and outside forms and setting them up, the concrete wall 60 can readily be poured.

In actual practice, I preferably mount the lower row of form sections on the frame and then pour the lower portion of the concrete wall 60. Another row of form sections is then mounted on the frame and more of the concrete is poured.

In forming that portion of the wall, which is inclined upwardly, as above the lower part of the wall as shown in Figure 1, I cover a part of the space between the respective inner and outer forms in any suitable way, and pour the concrete.

. The cover plates, one of which is illustrated for instance at 61 in Figure 1, may be bolts or the like 62.

connected with the uprights 11 by means of With a form of the kind herein set forth, it is possible to make almost any kind of a Wall and to pour four or more walls of a building with extreme rapidity and at a va low expense.

en the walls are set, the openings are .all provided, and window frames or door frames may be set in position at'any time.

Some changes may be made'm the construction and arrangement of myim roved plastic mold form structure without e art-' mg from the real'spirit and purpose 0 my invention, and it is m intentlon to cover by my claims, any modi ed forms of'structure or use of mechanical equivalents, which may.

be reasonably'included within their scope.

I claim as my invention: 1. In a device of the .class described, a

lurality of members connected together to orm a frame, a form section, means for adjustably connecting a frame member with a form section, comprising bolts, means for connecting said bolts with the form section, a bar extending across the frame member, said bolts being mounted in said bar, a second bar arranged adjacent to the last-mentioned frame member on the opposite side thereof from the first bar, 'bolts extended through said last bar, the heads of the last bolts being adapted to engage the form section.

2. A suitable frame work, comprising inner and outer frames, each consistin of horizontal and u ri ht ortions clamp gather, and detac a le orm sections mounted on said frames for adjustment toward or from the frames, .said form sections being rovided with grooves covered by plates avin slots therein, the grooves being wider than t e slotsin the plates and having portions projecting beyond the plates 3. A form section provided with a groove, a plate covering sai groove having a slot therein, the groove being wider than the slot in the plate and having portions projecting beyond the late.

4. In a evice of the class described, a form section having a plurality of recesses in its outer face, plates for covering said recesses having slots therein, such slots being narrower than the recesses, beveled hook devices, and means for adjustably connecting said beveled hook devicestogether. I

5. In a device of the class described, form sections arranged edge to ed e, a plate overlapping the joint between t e sections, and means for securing the sections together, comprising hook devices adjustabl connected together and secured to said sections, said hook devices having portions for pressing the plate against the sections.

6. In a device of the class described, a form section having in its outer face intersecting recesses, a plate covering said mtersecting recesses, said. plate having intersecting 'slotsabove the respective recesses, one of said recesses rejecting beyond the plate, the slot of the pl ete, which is located above therecesses, having a projecting portion open at one end.

7 A form structure comprising a frame, a plurality of sections, means for mounting the sections on the frame, and means supported on the sections for drawing and clamping together the adjacent'sections and holding themin alignment, said. latter means and the adjacent faces of' said sections having coacting engaging parts to hold such ineans and sections against movement away from each other. J

8. In a form structure, a frame including members crossing each other, a form section,

I coacting means on the frame and the section for supporting the section on the frame,

- said means being adjustable for varying the distance between the frame and the form section, and being. capable of adjustment with relation to the frame members in the lines of the axes of both the crossing members. r

9. In a device of the class described, a plurality of form sections arranged adjacent to each other-with a common meetin point, a

late having portions parallel with and adjacent to the respective form sections, and means for locking each of said ortions to the adjacent form section, said means being adapted to draw the sections toward a common; meeting point a'nd to prevent their movement out of alignment.

10. In a form structure, form sections having recesses in their-faces arranged end to end at rightangles toeach other to form a corner, an upright member arranged at the adjacent ends of the sections so as to form an extension of both sections, and means for securing said upright and the sections together, said means including adjustable devices for entering said recesses for drawing .the upright againstthe adjacent end faces of the sections under tension and adapted to, positively hold' the sections against movement at right angles to the planes in which they lie.

11. In a device of the class described, form sections arranged edge to edge, a plate overlapping the joint between the sectlons, and means for securing the sections together, comprising hook devices adjustably connected together and having portions pressing the plateagainst the sect1ons,and portions extending through the plate and engaging the sections.

12. In a device of the class described, form sections arranged end to end at right angles to form a corner, a member arranged at the adjacent ends of the sections to form an extension of both sections, and means for securingthe member and the sections together,

comprising an element secured to said memher and projecting therefrom between the sections, and an adjustable device connecting the sections and said element under tension.

13. In a device of the class described, form sections arranged end to end at right angles to form a corner, a member arranged at the adjacent ends of the sections to form an extension of both sections, and adjustable means for securing the member and the sections together under tension, comprising an element secured to said member and projecting therefrom between the sections, and a device connected with said member and having connections with said sections.

14. In a device of the class described, form sections arranged end to end at right angles to form a corner, a member arranged at the adjacent ends of the sections to form an extension of both sections, and means for securing the member and the sections together, comprising an element secured to said memher and projecting therefrom between the sections, and a device connected with said member and having adjustable connection with the sections for holding the parts together under tension, said adjustable connection including hook members with faces inclined with relation to the faces of the sec tions, said sectionshaving members for coacting with said hook members.

15. In a device of the class described, form sections arranged end to end at right anglesto form an outside corner, a member arranged at the adjacent ends of the sections to form an extension of both sections, and means for securing the member and the sections together, comprisin an element for engaging said member, an adjustable means for securing said element to the sections under tension.

16. In a device of the class described, form sections arranged end to end at ri ht angles to form an outside corner, a mem er arranged at the adjacent ends of the sections to form an extension of both sections, and means for securing the member and the sections together, comprising an element overlapping the joints between said member and said sections, and an adjustable means for securing said element to the sections under tension, said means including. hook members with faces inclinedwith relation to the faces of the sections, said sections having members for coacting with said hook members.

17. In a form structure, a frame, form sections having recesses in their faces provided with restricted outlets, and means for entering said recesses, engaging the sections and supporting them on the frame, and means for entering other of the recesses and engaging adjacent sections for securing such sections together.

18. A frame comprising upright and horizontal members adjustably connected together for self-support, means for detachably mounting form sections thereon, whereby there is provided a frame for sup porting form sections from which any or all of the form sections may be removed leaving the frame available for use in finishing a building.

De Moines, Iowa, February 28, 1922.

ALBERT C. WELLS. 

